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import hc4094sniffer
import time
def sniff(hw, nrChips, xor, mask, shift, format, nrInLine, action):
hw.loadGNDLayout(0)
hw.loadVCCLayout(0)
hw.loadVPPLayout(0)
hw.setVCCVoltage(5)
hw.setVPPVoltage(5)
hw.flushCommands()
s = hc4094sniffer.Sniffer("/dev/ttyUSB0", nrChips)
count = offs = 0
for index in range(0x100):
s.clear()
action(0)
action(index)
hw.flushCommands()
time.sleep(0.1)
buf = s.read()
d = 0
for i in range(nrChips):
d |= buf[i] << (8 * i)
d ^= xor
d &= mask
d >>= shift
print(format % d, end='')
count += 1
if count == nrInLine:
print(" # 0x%02X" % offs)
count = 0
offs += nrInLine
else:
print(" ", end='')
def sniffGNDLayouts(hw):
sniff(hw, nrChips=2,
xor=0x3FE0, mask=0xC000, shift=0,
format="0x%04X,",
nrInLine=8,
action=lambda layout: hw.loadGNDLayout(layout))
def sniffVCCLayouts(hw):
sniff(hw, nrChips=2,
xor=0x3FE0, mask=0x3F00, shift=0,
format="0x%04X,",
nrInLine=8,
action=lambda layout: hw.loadVCCLayout(layout))
def sniffVPPLayouts(hw):
sniff(hw, nrChips=2,
xor=0xFFFF, mask=0xFF9F, shift=0,
format="0x%04X,",
nrInLine=8,
action=lambda layout: hw.loadVPPLayout(layout))
def sniffVPPVoltages(hw):
sniff(hw, nrChips=2,
xor=0x3FE0, mask=0x001F, shift=0,
format="0x%04X,",
nrInLine=8,
action=lambda centivolts: hw.setVPPVoltage(centivolts / 10.0))
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